Multilayer plastic pipe with good layer adhesion

• Main Authors: SCHMITZ GUIDO, HELLERMANN WALTER, OENBRINK GEORG, GROSSE-PUPPENDAHL THOMAS, HAEGER HARALD
• Format: Patent
• Language: English; Korean
• Published: 11.08.2001
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PIPES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE: A multilayer plastic pipe having favorable layer adhesion is provided to manufacture a polyolefin pipe having a polyester cutoff layer presenting strong adhesion of layers. CONSTITUTION: A multilayer plastic pipe comprises at least one first layer containing a polyolefin formed material, at least one second layer containing a polyester formed material, and a third layer arranged between the first and second layers including an adhesive medium having a reaction group. It features in that the polyester formed material of the second layer contains one or more compounds selected from a compound having two or more of carbodiimide groups, a compound having two or more of carboxylic acid anhydride groups, a compound having two or more of maleinimide groups, and a compound having two or more of oxazine groups. 폴리올레핀 성형 조성물로 이루어진 하나 이상의 층(I), 카보디이미드 그룹이 2개 이상인 화합물(a), 카복실산 무수물 그룹이 2개 이상인 화합물(b), 말레이미드 그룹이 2개 이상인 화합물(c) 및 옥사진 그룹이 2개 이상인 화합물(d)로 이루어진 그룹으로부터 선택된 하나 이상의 화합물을 포함하는 폴리에스테르 성형 조성물로 이루어진 하나 이상의 층(II) 및 층(I)과 층(II) 사이에 위치하는, 반응성 그룹을 함유하는 접착 촉진제로 이루어진 하나 이상의 층(III)을 포함하는 본 발명의 다층 플라스틱 파이프는 층 접착력이 강력하다.